The keys should work as supposed to. It can be hard to distinguish a zero from the letter O and so forth, to avoid the mix-up try to copy and paste the keys from your registration email to PokerOffice. You can use the Ctrl+C command to copy the keys from the e-mail and Ctrl+V to paste the copied text into PokerOffice.
If it still doesn´t work then please send a email to
support@pokeroffice.com .